activate_tab

Switch to a specific Safari tab. Use list_tabs to find window/tab indices.

SERVERAirMCP SOURCEairmcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/heznpc-airmcp/activate-tab.md

WHAT IT DOES

What activate_tab does on AirMCP

AI agents invoke activate_tab to trigger actions in AirMCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why activate_tab is rated High

Activating/switching a browser tab triggers an external UI action in Safari — it changes the browser's state and what is displayed. This is an Execute-class action (browser interaction), not a passive read. Misuse could expose sensitive content in another tab or disrupt user workflow.

From the tool's definition Switch to a specific Safari tab

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs activate_tab safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AirMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For activate_tab, this is the rule to start with:

activate_tab Rate-limited

activate_tab stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "activate_tab": {
      "limits": [
        {
          "counter": "activate_tab_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AirMCP, apply this rule, and every activate_tab call is checked against it from then on.

FAQ

Questions about activate_tab

What does the activate_tab tool do? +

Switch to a specific Safari tab. Use list_tabs to find window/tab indices. It is categorised as a Execute tool in the AirMCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on activate_tab? +

Register the Air MCP server in PolicyLayer and add a rule for activate_tab: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AirMCP. Nothing to install.

What risk level is activate_tab? +

activate_tab is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit activate_tab? +

Yes. Add a rate_limit block to the activate_tab rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block activate_tab completely? +

Set action: deny in the PolicyLayer policy for activate_tab. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides activate_tab? +

activate_tab is provided by the Air MCP server (airmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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